- All sections
- C - Chemistry; metallurgy
- C03B - Manufacture or shaping of glass, or of mineral or slag wool; supplementary processes in the manufacture or shaping of glass, or of mineral or slag wool
- C03B 5/235 - Heating the glass
Patent holdings for IPC class C03B 5/235
Total number of patents in this class: 641
10-year publication summary
|
54
|
49
|
47
|
60
|
42
|
64
|
47
|
43
|
42
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Johns Manville | 967 |
90 |
| Owens-Brockway Glass Container Inc. | 738 |
85 |
| Corning Incorporated | 10087 |
40 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3581 |
40 |
| Saint-Gobain Isover | 627 |
40 |
| AGC Glass Europe | 1101 |
29 |
| Nippon Electric Glass Co., Ltd. | 2388 |
24 |
| Praxair Technology, Inc. | 1338 |
24 |
| Knauf Insulation | 47 |
19 |
| Knauf Insulation SPRL | 173 |
16 |
| Saint-Gobain Glass France | 3774 |
14 |
| Rockwool A/S | 782 |
14 |
| Asahi Glass Company, Limited | 2885 |
13 |
| Air Products and Chemicals, Inc. | 1425 |
9 |
| SCHOTT AG | 1671 |
9 |
| ROCKWOOL International A/S | 312 |
9 |
| Agc, Inc. | 4414 |
8 |
| Owens Corning Intellectual Capital, LLC | 1554 |
7 |
| OCV Intellectual Capital, LLC | 202 |
6 |
| Vitro Flat Glass LLC | 441 |
6 |
| Other owners | 139 |